I just grabbed pidora and put it on an SD. The boot went ok (there was one problem but it goes away to fast...) and I went through the firstboot process. I selected text boot and default video. Then the system rebooted 2 times (resizing the rootfs). So I was left at the command prompt and I did a yum update which didn't have any updates (strange...). Then I ran startx and there was the flurry of output then the screen went black, the mouse pointer showed up, and then I got an error dialog box with the message:
Failed to load session gnome
With a button labeled "Logout". After pressing this button I'm back at the prompt. Here is the listing from the failed startx session:
gnome-session: Warning: Unable to find required compnent 'gnome-shell'
gnome-session: Warning: Unable to find required compnent 'gnome-panel'
Anyone else see this? Or have an idea of how I can fix it?